Shock-absorber for automobiles.



W. H. OOOK. SHOOK ABSORBEB FOB. AUTOMOBILES. ArrmoA'noN rILLnsmf'r. 1o. 1912.

1,058,413, A yPau-.einenA1-pus, 1913.

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. SHOCK-AESORBER AUTOMOBILES.

l v lBl'jecliication of Letters Patent. I(

Patented Apr. S, 1913.

Application :ned septemberio, 191e. 'seriez No. 719,662.

To all fio/wm t may concern.' j

Be it known that I, W'ALTER COOK, al citizen of the United States, residing at- New Orleans, in the parish' of Orleans and State ot' Louisiana, have invented new and useful Improvements in Shock-Absorbers for Auv tomobiles, of which the following is a speiication. A

This invention relates to improvements in shock absorbers of that general type wherein a cushioning means is empio ed in connes tion with a main spring to ta re up those vibrations which are beyond the capacit-y of the main spring to absorb and care for.

The improved shock absorber is to be arranged transversely of the vehicle and its elements are in coaction with the main springs at the side of the vehicle..

The object ofthe invention is to substantially eliminate or reduce to a minimum any side swayjof the vehicle "consequent tothe action of thef springs or shock absorbing agencies at the sides of the vehicle and the. invention proposes a transverse main springv between which and the vehicle frame or body a` cushioning tions between the transverse mainspring and the longitudinal main springs whichwill transmit the action ot the latter to the former and, at the same time, will allow of all of said springs having the requisite freedom of motion. The invention does not entailany stiiiening of the main springs beyond the strength required to properly carryl their load and, consequently, the yielding action ofsaid springs is unimpaired.

An embodiment of the invent-ion is illus trated in the accompanying drawings, wherein:

Figure l is an elevation of the improved shock absorber as seen from the rear or the front of the vehicle frame or body; Fig. 2 is a detail side elevation allowing the con nections between the main s rings at the side ci the vehicle frame or liody and the transverse main springs.

Similar characters of reference designate corresponding;| 'parts throughout the several views. i

The main springs at the side of the vehicle are shown at l and the transverse main sprirfgI at 2. The spring 2 coacts with a cushioning agent, preferably, an elongated pneumatic tube 3, which bears against channeled brackets 9 secured to the vehicle frame or body or other equivalent parts of said -nectecl at their lower agent is interposed and connecf mizing they intensity frame or body. The tube Sis transversely disposed, being substantially equal in length to the width of the vehicle and seats upon a transverse spring bar- 4 which, in the instance disclosed, is secured at its central port1on to the central portion of the spring 2. The support for the bar ets 5 which depend from of the vehicle and links 6, which connect said brackets and the ends of the bar 4..

`he connections between the ends of the spring 2 and the adjacent ends ofthe springs l comprise'links 7 which are pivoted transversely at the ends of the springs l, so as to swin "in the `plane of said springs from whic they hang, and links 8 which are pivoted at the lower ends of the links 7 on axes which are at right anglesl to the pivots of e latter, so as to swing in the plane of the spring 2. The links` 8 are pivot-ally conends to the adjacent the frame or body 4 comprises brack-k 1 ends of the spring 2. The links 7 and 8 thus i form substantially universal connections between the adjacent ends of the springs 1 and 2 and, while transmitting the pulsations of the springs 1 to the spring 2, allow of all of the said springs having the requisite freedomof play. A f

The bar 4 constitutes an element forv transmittin'g itself absorbs some of the shocks, thus miniinal vibrations which are taken care of by the element 3. W'here the cushioning element comprises an elongated pneumatic tube, as in the embodiment disclosed, a somewhat wave-like compression lof the cushion 3 4from the center outward is ob tained, and4 the action of the device is thus rendered sensitive and responsive It is obvious that if there is any 4inequality in the action of the sprin s i, such as would roduce a aide sway o the body-of the vehicle, such ine luality is compensated for by the construction herein described.

The present shockabsorbernot only compensates for ineuahty in.I side springs, an Vthereby lmproves 'the lrid ing qualities of the .vehicle ut it continui ously/relieves said springe of a substantial pro ortica of the stresses and, consequent-1y,

pro ongs the life ofthe vehicle suspension. Y

claim:

41. In a shock absorber, the combination with main springs at the sides ofthe vevibrations to the cushion 3', and

and recurrence of thel the action of the Having fully described my invent-ion, II

liicle, offa transverse main spring, universal pjointfmeansto suspend. the transverse spring Afrom the side springs, 'acushioning elespring bar Which worksibetvveenj-the transverse spring andthe cushioningelement ,QLIn a shockabsorber, the. combination vwith main springs at the sidesoffthei ve.

hicie, of a transverse main v 'spri'n'g,"universal joint means to suspend the transverse spring. .romxthe 'side springs, a cushioning Velement which takes a bearing against-the frameof ...11,5 the vehicle, and a shock transmitting ele- "ment comprising transverse spring Vbar secured at its centerto the transverse spring and 'fat its` en ds to: the vframe of the-vehicle,g th e lbar lworking between the .transl 2Q versexSpringwand the "cushioning elementg',`

. 3. 'In a 'shock absorbent-he combination .withmainasprings. at` the sides of the vehicle, ofa transverse main spring, universal ]o1nt means4 to suspend the transverse spring from the side` spr1ngs,'- aA cushioning element -Whichj takes.v a bearing'against the 'trame of ,the vehicle', a shock transmitting element which works between the transverse `springand'- the cushioning element, the

30 vshock transmitting element comprising a transverse. springbar secured at its center to the transverse spring, and links connecting the ends of said spring bar and the `frame of the vehicle.

4. Inaa shock absorber,l the combination with main springs at the sides -of the vehicle, of aftransverse main spring, universal j ointmeans .to suspend the transverse spring from the side springsand comprising apair 40 of pivotally connected links ateach end of the transverse L spring, theupper links hang'- ing from the side springs and being movable in the plane, of the latter and the lower links.

plane `of the transf being. movable' in the verse' spring, a cushioning `element which takes :a bearing against the.- frame of. the

vehicle, a shocktransmitting element whichy lWorlesvbetween the transverse spring and the cushioning element, the shock transmitting f`elcm,ent comprising a'transver'se spring barj secured at itscenter Ito the transverse spring, 'and links connecting the ends of said spring ibar and the frame of the vehicle.

`5. In a shock absorber, the combination with main springs at thesides of the veg-hicle, of. .a transverse main spring, uni= I' :v.er'sal joint means to''suspend the transverse yspring from' the side. springs, a cushioning element comprlsmg a transverse elongated (iQ- pneumatic tube which takes a bearing Gentili-.oz thir'p'atent may' be thinned for against the frame of the vehicle, and a shock transmitting element comprising a transverse spring barwhich receives the impulses of the', transversespring and forms a seat for the-tube.` v f.

In ajshock absorber, the, combination 'vvith4 main springs 'at the sidesv ofi'theveliiele,l of, at'rans'versev main spring, uni,- versaljoint means to suspend the 'transverse springV from the side springs, a cushioning-element comprising n. transverse elongated pneumatic tubek which takes -a bearing against the frame of the vehicle, a

transverse spring bar-secured at. its center to the transverse spring, and links connecting the 'ends of the springfbar and the ve# hicle frame, the springbar forming .a lseat 'f or the tube.`

7. In a shock absorber,('tlie combination with main' springs at the sides of the 4v e-A hicle, of a transverse main spring, universal joint means to suspendthe't-ransverse spring from the side springs and comprising a pair of pivotally connected links ateach end ot the transverse spring, the up er link shang ing from theside'springs an being movable in the plane of the latter and the lower links being movable in thefplnne of'the transversespring, acushioningelement comprising a transverse elongated `pneumatic tube which takes a bearing against the frame of the vehicle, and af'shock transmitting element comprising a' transverse spring bar which receivesl the impulses of the transverse spring and forms a seatfor' the tube.

corinecting-the ends of the spring bari and the vehicle frame, the spring barvforming a seat forfthe tube.

In testimony whereof I have hereunto set my hand in presence offtwo subscribing witnesses.

. WALTER H. COOK.

'itncsses:

THOMAS R. RICHARDSON, ROBERT IVATERMAN.

live cents each. by addressing the Commissioner of Patents. Washington, D. C.

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